/* Morphous Abalone — Vibe Coding Assistant (scoped chat theme) */

.vca-backdrop {
  --vca-background: oklch(0.209 0.017 216.6);
  --vca-foreground: oklch(0.979 0.003 264.5);
  --vca-card: oklch(0.197 0.020 207.3);
  --vca-card-foreground: oklch(0.979 0.003 264.5);
  --vca-primary: oklch(0.797 0.095 185.2);
  --vca-primary-foreground: oklch(0.209 0.017 216.6);
  --vca-secondary: oklch(0.324 0.020 206.4);
  --vca-muted-foreground: oklch(0.866 0.007 219.6);
  --vca-accent: oklch(0.838 0.072 5.7);
  --vca-accent-foreground: oklch(0.209 0.017 216.6);
  --vca-destructive: oklch(0.704 0.191 22.2);
  --vca-border: oklch(1 0 0 / 12%);
  --vca-input: oklch(1 0 0 / 16%);
  --vca-ring: oklch(0.797 0.095 185.2);
  --vca-radius: 0.5rem;
  --vca-primary-soft: color-mix(in oklch, var(--vca-primary) 18%, transparent);
  --vca-primary-border: color-mix(in oklch, var(--vca-primary) 38%, transparent);
  --vca-accent-soft: color-mix(in oklch, var(--vca-accent) 14%, transparent);
  --vca-destructive-soft: color-mix(in oklch, var(--vca-destructive) 14%, transparent);
  --vca-destructive-border: color-mix(in oklch, var(--vca-destructive) 32%, transparent);
  --vca-success: oklch(0.797 0.095 185.2);
  --vca-success-soft: color-mix(in oklch, var(--vca-success) 18%, transparent);
  --vca-success-border: color-mix(in oklch, var(--vca-success) 42%, transparent);

  position: fixed;
  inset: 0;
  z-index: 10050;
  background: color-mix(in oklch, var(--vca-background) 72%, black);
  backdrop-filter: blur(4px);
  display: none;
  align-items: center;
  justify-content: center;
  padding: 16px;
}

/* Floating mode: don't block the parent page; modal positions itself. */
.vca-backdrop[data-floating="true"] {
  background: transparent;
  backdrop-filter: none;
  padding: 0;
  pointer-events: none;
}

[data-theme="light"] .vca-backdrop {
  --vca-background: oklch(0.979 0.003 264.5);
  --vca-foreground: oklch(0.209 0.017 216.6);
  --vca-card: oklch(0.933 0.007 260.7);
  --vca-card-foreground: oklch(0.209 0.017 216.6);
  --vca-primary: oklch(0.654 0.110 193.2);
  --vca-primary-foreground: oklch(0.979 0.003 264.5);
  --vca-secondary: oklch(0.952 0.006 264.5);
  --vca-muted-foreground: oklch(0.191 0.022 205.9);
  --vca-accent: oklch(0.838 0.072 5.7);
  --vca-accent-foreground: oklch(0.209 0.017 216.6);
  --vca-destructive: oklch(0.636 0.208 25.3);
  --vca-border: oklch(0.860 0.009 232.4);
  --vca-input: oklch(0.860 0.009 232.4);
  --vca-ring: oklch(0.797 0.095 185.2);
  --vca-success: oklch(0.654 0.110 193.2);

  background: color-mix(in oklch, var(--vca-foreground) 18%, transparent);
}

.vca-backdrop.open {
  display: flex;
}

/* Floating backdrop uses `block`, not `flex`, because the modal positions
   itself with `position: fixed` and we don't want the centered-flex layout. */
.vca-backdrop[data-floating="true"].open {
  display: block;
}

.vca-modal {
  width: min(560px, 100%);
  max-height: min(85vh, 720px);
  display: flex;
  flex-direction: column;
  background: var(--vca-card);
  color: var(--vca-card-foreground);
  border: 1px solid var(--vca-border);
  border-radius: calc(var(--vca-radius) + 4px);
  box-shadow:
    0 24px 48px color-mix(in oklch, var(--vca-background) 55%, transparent),
    0 0 0 1px color-mix(in oklch, var(--vca-ring) 12%, transparent);
  overflow: hidden;
}

.vca-backdrop[data-floating="true"] .vca-modal {
  position: fixed;
  right: 24px;
  bottom: 24px;
  width: clamp(320px, 38vw, 560px);
  max-height: min(75vh, 720px);
  pointer-events: auto;
  /* Smooth collapse/expand transition (disabled while dragging/resizing). */
  transition: max-height 180ms ease, width 180ms ease, height 180ms ease;
}

/* Crypto tools: FAB is bottom-left — open panel on the same side (away from anchor ads). */
.vca-backdrop[data-floating="true"][data-corner="left"] .vca-modal {
  left: max(24px, env(safe-area-inset-left, 0px));
  right: auto;
  bottom: max(24px, env(safe-area-inset-bottom, 0px));
}

.vca-backdrop[data-floating="true"] .vca-modal.vca-resizing,
.vca-backdrop[data-floating="true"] .vca-modal.vca-dragging {
  transition: none;
}

.vca-backdrop[data-floating="true"] .vca-modal[data-user-sized="true"]:not([data-collapsed="true"]) {
  max-height: none;
  max-width: none;
}

/* IDE-style resize handles (expanded panel only). */
.vca-resize-handles {
  position: absolute;
  inset: 0;
  pointer-events: none;
  z-index: 2;
}

.vca-backdrop[data-floating="true"] .vca-modal[data-collapsed="true"] .vca-resize-handles {
  display: none;
}

.vca-resize {
  position: absolute;
  pointer-events: auto;
  touch-action: none;
}

.vca-resize-n {
  top: 0;
  left: 8px;
  right: 8px;
  height: 6px;
  cursor: ns-resize;
}

.vca-resize-s {
  left: 8px;
  right: 8px;
  bottom: 0;
  height: 6px;
  cursor: ns-resize;
}

.vca-resize-e {
  top: 8px;
  right: 0;
  bottom: 8px;
  width: 6px;
  cursor: ew-resize;
}

.vca-resize-w {
  top: 8px;
  left: 0;
  bottom: 8px;
  width: 6px;
  cursor: ew-resize;
}

.vca-resize-se {
  right: 0;
  bottom: 0;
  width: 18px;
  height: 18px;
  cursor: nwse-resize;
}

.vca-resize-se::after {
  content: '';
  position: absolute;
  right: 4px;
  bottom: 4px;
  width: 10px;
  height: 10px;
  border-right: 2px solid color-mix(in oklch, var(--vca-muted-foreground) 85%, transparent);
  border-bottom: 2px solid color-mix(in oklch, var(--vca-muted-foreground) 85%, transparent);
  border-bottom-right-radius: 2px;
  opacity: 0.85;
  pointer-events: none;
}

.vca-backdrop[data-floating="true"] .vca-modal:hover .vca-resize-se::after {
  opacity: 1;
}

/* Collapsed state: hide body, keep just the draggable header bar. */
.vca-backdrop[data-floating="true"] .vca-modal[data-collapsed="true"] {
  width: clamp(240px, 28vw, 360px);
  max-height: 60px;
  border-color: var(--vca-primary-border);
  box-shadow:
    0 12px 40px color-mix(in oklch, var(--vca-background) 65%, transparent),
    0 0 0 2px var(--vca-primary-soft),
    inset 3px 0 0 var(--vca-primary);
}
.vca-backdrop[data-floating="true"] .vca-modal[data-collapsed="true"] .vca-body { display: none; }
.vca-backdrop[data-floating="true"] .vca-modal[data-collapsed="true"] .vca-subtitle { display: none; }
/* Policy row stays in the expanded header only — it was clipping the + button when minimized. */
.vca-backdrop[data-floating="true"] .vca-modal[data-collapsed="true"] .vca-policy { display: none; }
.vca-backdrop[data-floating="true"] .vca-modal[data-collapsed="true"] .vca-header {
  flex-wrap: nowrap;
  align-items: center;
  padding: 10px 12px;
  border-bottom: 0;
  cursor: pointer;
  background: linear-gradient(
    90deg,
    color-mix(in oklch, var(--vca-primary) 22%, var(--vca-card)),
    color-mix(in oklch, var(--vca-primary) 8%, var(--vca-card))
  );
}
.vca-backdrop[data-floating="true"] .vca-modal[data-collapsed="true"] .vca-header-actions {
  flex-shrink: 0;
}
.vca-backdrop[data-floating="true"] .vca-modal[data-collapsed="true"] .vca-title {
  max-width: 9rem;
  font-size: 14px;
}
.vca-backdrop[data-floating="true"] .vca-modal[data-collapsed="true"] .vca-collapse {
  background: var(--vca-primary);
  color: var(--vca-primary-foreground);
  border-color: transparent;
  font-weight: 700;
  min-width: 28px;
  box-shadow: 0 1px 4px color-mix(in oklch, var(--vca-primary) 45%, transparent);
}

/* Hover peek: temporarily show the panel while minimized (desktop). */
.vca-backdrop[data-floating="true"] .vca-modal[data-collapsed="true"]:hover {
  width: clamp(320px, 38vw, 560px);
  max-height: min(75vh, 720px);
  box-shadow:
    0 24px 48px color-mix(in oklch, var(--vca-background) 55%, transparent),
    0 0 0 2px var(--vca-primary-border);
}
.vca-backdrop[data-floating="true"] .vca-modal[data-collapsed="true"]:hover .vca-body {
  display: flex;
}
.vca-backdrop[data-floating="true"] .vca-modal[data-collapsed="true"]:hover .vca-subtitle {
  display: block;
}
.vca-backdrop[data-floating="true"] .vca-modal[data-collapsed="true"]:hover .vca-policy {
  display: none;
}
.vca-backdrop[data-floating="true"] .vca-modal[data-collapsed="true"]:hover .vca-header {
  padding: 14px 16px;
  border-bottom: 1px solid var(--vca-border);
  cursor: grab;
  background: color-mix(in oklch, var(--vca-primary) 6%, var(--vca-card));
}
.vca-backdrop[data-floating="true"] .vca-modal[data-collapsed="true"]:hover .vca-title {
  max-width: none;
  font-size: 16px;
}

.vca-backdrop[data-floating="true"] .vca-modal[data-collapsed="true"] .vca-expand-hint {
  display: inline-flex !important;
  flex-shrink: 0;
  align-items: center;
  gap: 4px;
  margin-left: auto;
  padding: 5px 10px;
  border-radius: 999px;
  font: 700 10px/1 'Sora', system-ui, sans-serif;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--vca-primary-foreground);
  background: var(--vca-primary);
  border: 1px solid color-mix(in oklch, var(--vca-primary) 70%, white);
  box-shadow:
    0 2px 10px color-mix(in oklch, var(--vca-primary) 40%, transparent),
    0 0 0 1px color-mix(in oklch, var(--vca-primary) 25%, transparent);
  animation: vca-expand-hint-pulse 2.4s ease-in-out infinite;
  cursor: pointer;
}
.vca-expand-hint-icon {
  font-size: 11px;
  line-height: 1;
  transform: translateY(-1px);
}
@keyframes vca-expand-hint-pulse {
  0%, 100% {
    box-shadow:
      0 2px 10px color-mix(in oklch, var(--vca-primary) 40%, transparent),
      0 0 0 1px color-mix(in oklch, var(--vca-primary) 25%, transparent);
  }
  50% {
    box-shadow:
      0 2px 16px color-mix(in oklch, var(--vca-primary) 55%, transparent),
      0 0 0 3px color-mix(in oklch, var(--vca-primary) 22%, transparent);
  }
}
.vca-backdrop[data-floating="true"] .vca-modal[data-collapsed="true"]:hover .vca-expand-hint {
  display: none !important;
}
.vca-backdrop[data-floating="true"] .vca-modal[data-collapsed="true"] .vca-title-row {
  flex: 1;
  min-width: 0;
}

.vca-body {
  display: flex;
  flex-direction: column;
  flex: 1;
  min-height: 0;
}

.vca-billing-bar {
  position: relative;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 12px 14px;
  border-bottom: 1px solid var(--vca-border);
  background:
    linear-gradient(180deg,
      color-mix(in oklch, var(--vca-primary) 14%, var(--vca-card)),
      var(--vca-card));
  flex-shrink: 0;
  animation: vca-billing-in 180ms ease-out;
}

@keyframes vca-billing-in {
  from { opacity: 0; transform: translateY(-4px); }
  to { opacity: 1; transform: translateY(0); }
}

.vca-billing-main {
  display: flex;
  align-items: center;
  gap: 10px;
  flex: 1 1 14rem;
  min-width: 0;
}

.vca-billing-badge {
  flex-shrink: 0;
  font: 700 10px/1 'Sora', system-ui, sans-serif;
  letter-spacing: 0.08em;
  padding: 5px 8px;
  border-radius: 999px;
  background: var(--vca-primary);
  color: var(--vca-primary-foreground);
  text-transform: uppercase;
}

.vca-billing-copy { min-width: 0; }

.vca-billing-title {
  margin: 0;
  font: 600 13px/1.3 'Sora', system-ui, sans-serif;
  color: var(--vca-foreground);
}

.vca-billing-sub {
  margin: 2px 0 0;
  font-size: 12px;
  line-height: 1.4;
  color: var(--vca-muted-foreground);
}

.vca-billing-sub em {
  font-style: normal;
  color: var(--vca-success);
  font-weight: 600;
}

.vca-billing-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  flex-shrink: 0;
}

.vca-billing-btn {
  appearance: none;
  border: 1px solid var(--vca-border);
  border-radius: calc(var(--vca-radius) - 2px);
  padding: 7px 13px;
  font: 600 12px/1.2 system-ui, sans-serif;
  cursor: pointer;
  background: var(--vca-secondary);
  color: var(--vca-foreground);
  text-decoration: none;
  white-space: nowrap;
  transition: background 120ms ease, border-color 120ms ease, transform 60ms ease;
}

.vca-billing-btn:hover:not(:disabled) {
  border-color: var(--vca-primary-border);
  background: var(--vca-primary-soft);
}

.vca-billing-btn:active:not(:disabled) { transform: translateY(1px); }

.vca-billing-btn-primary {
  background: var(--vca-primary);
  color: var(--vca-primary-foreground);
  border-color: transparent;
  box-shadow: 0 1px 2px color-mix(in oklch, var(--vca-primary) 40%, transparent);
}

.vca-billing-btn-primary:hover:not(:disabled) {
  filter: brightness(1.06);
  background: var(--vca-primary);
}

.vca-billing-btn-ghost {
  background: transparent;
}

.vca-billing-btn:disabled {
  opacity: 0.6;
  cursor: wait;
}

.vca-billing-dismiss {
  position: absolute;
  top: 6px;
  right: 8px;
  width: 20px;
  height: 20px;
  display: grid;
  place-items: center;
  border: 0;
  background: transparent;
  color: var(--vca-muted-foreground);
  font-size: 16px;
  line-height: 1;
  border-radius: 4px;
  cursor: pointer;
}

.vca-billing-dismiss:hover {
  background: color-mix(in oklch, var(--vca-foreground) 12%, transparent);
  color: var(--vca-foreground);
}

.vca-msg.system.is-warn {
  border-color: var(--vca-primary-border);
  background: var(--vca-primary-soft);
  color: var(--vca-foreground);
}

/* ── Plan picker overlay ───────────────────────────────────────────────── */
.vca-plans {
  position: absolute;
  inset: 0;
  z-index: 5;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 16px;
  background: color-mix(in oklch, var(--vca-background) 70%, black);
  backdrop-filter: blur(3px);
  border-radius: inherit;
  animation: vca-billing-in 150ms ease-out;
}

.vca-plans[hidden] { display: none; }

.vca-plans-sheet {
  position: relative;
  width: 100%;
  max-width: 460px;
  max-height: 100%;
  overflow-y: auto;
  background: var(--vca-card);
  border: 1px solid var(--vca-border);
  border-radius: var(--vca-radius);
  padding: 18px 18px 16px;
  box-shadow: 0 18px 48px color-mix(in oklch, black 45%, transparent);
}

.vca-plans-close {
  position: absolute;
  top: 8px;
  right: 10px;
  width: 26px;
  height: 26px;
  display: grid;
  place-items: center;
  border: 0;
  background: transparent;
  color: var(--vca-muted-foreground);
  font-size: 20px;
  line-height: 1;
  border-radius: 6px;
  cursor: pointer;
}
.vca-plans-close:hover { background: color-mix(in oklch, var(--vca-foreground) 12%, transparent); color: var(--vca-foreground); }

.vca-plans-title {
  margin: 0;
  font: 700 18px/1.2 'Sora', system-ui, sans-serif;
  color: var(--vca-foreground);
}

.vca-plans-sub {
  margin: 4px 0 14px;
  font-size: 13px;
  color: var(--vca-muted-foreground);
}

.vca-plans-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
}

.vca-plan-card {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 10px;
  padding: 14px 14px 14px;
  border: 1px solid var(--vca-border);
  border-radius: calc(var(--vca-radius) - 1px);
  background: var(--vca-background);
}

.vca-plan-card[data-plan="yearly"] {
  border-color: var(--vca-primary-border);
  background: var(--vca-primary-soft);
}

.vca-plan-ribbon {
  position: absolute;
  top: -9px;
  right: 12px;
  font: 700 9px/1 'Sora', system-ui, sans-serif;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  padding: 4px 8px;
  border-radius: 999px;
  background: var(--vca-primary);
  color: var(--vca-primary-foreground);
}

.vca-plan-head { display: flex; flex-direction: column; gap: 2px; }

.vca-plan-name {
  font: 600 14px/1.2 'Sora', system-ui, sans-serif;
  color: var(--vca-foreground);
}

.vca-plan-price {
  font: 700 22px/1.1 'Sora', system-ui, sans-serif;
  color: var(--vca-foreground);
}

.vca-plan-price-pending {
  font-size: 14px;
  font-weight: 600;
  color: var(--vca-muted-foreground);
}

.vca-plan-tokens {
  display: inline-flex;
  align-self: flex-start;
  margin-top: 4px;
  font: 600 11px/1 'Sora', system-ui, sans-serif;
  letter-spacing: 0.02em;
  padding: 4px 8px;
  border-radius: 999px;
  background: color-mix(in oklch, var(--vca-primary) 14%, transparent);
  color: var(--vca-primary);
  border: 1px solid var(--vca-primary-border);
}

.vca-plan-model {
  display: inline-flex;
  align-self: flex-start;
  margin-top: 4px;
  font: 600 11px/1.2 'DM Sans', system-ui, sans-serif;
  padding: 4px 8px;
  border-radius: 999px;
  background: var(--vca-accent-soft);
  color: var(--vca-accent-foreground);
  border: 1px solid color-mix(in oklch, var(--vca-accent) 35%, transparent);
}

.vca-plan-desc {
  margin: 0;
  font-size: 11px;
  line-height: 1.35;
  color: var(--vca-muted-foreground);
}

.vca-plan-cadence {
  font-size: 11px;
  color: var(--vca-muted-foreground);
}

.vca-plan-feats {
  margin: 0;
  padding: 0;
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 6px;
  flex: 1;
}

.vca-plan-feats li {
  position: relative;
  padding-left: 18px;
  font-size: 12px;
  line-height: 1.35;
  color: var(--vca-muted-foreground);
}

.vca-plan-feats li::before {
  content: "✓";
  position: absolute;
  left: 0;
  color: var(--vca-success);
  font-weight: 700;
}

.vca-plan-choose { width: 100%; text-align: center; }

.vca-plans-compare {
  margin-top: 14px;
  padding: 12px;
  border: 1px solid var(--vca-border);
  border-radius: calc(var(--vca-radius) - 1px);
  background: color-mix(in oklch, var(--vca-muted) 35%, transparent);
}

.vca-plans-compare-title {
  margin: 0 0 8px;
  font: 600 12px/1.2 'Sora', system-ui, sans-serif;
  color: var(--vca-foreground);
}

.vca-plans-tier-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 8px;
}

.vca-plans-tier {
  display: flex;
  flex-direction: column;
  gap: 2px;
  padding: 8px;
  border-radius: 8px;
  background: var(--vca-background);
  border: 1px solid var(--vca-border);
}

.vca-plans-tier.is-pro {
  border-color: var(--vca-primary-border);
  background: var(--vca-primary-soft);
}

.vca-plans-tier-name {
  font: 600 11px/1.2 'Sora', system-ui, sans-serif;
  color: var(--vca-foreground);
}

.vca-plans-tier-tokens {
  font-size: 11px;
  color: var(--vca-muted-foreground);
}

.vca-plans-tier-model {
  display: inline-block;
  margin-top: 4px;
  padding: 2px 6px;
  border-radius: 999px;
  font: 600 10px/1.2 'DM Sans', system-ui, sans-serif;
  color: var(--vca-primary);
  background: var(--vca-primary-soft);
  border: 1px solid var(--vca-primary-border);
}

.vca-plans-note {
  margin: 12px 0 0;
  font-size: 11px;
  text-align: center;
  color: var(--vca-muted-foreground);
}

@media (max-width: 480px) {
  .vca-plans-grid { grid-template-columns: 1fr; }
  .vca-plans-tier-grid { grid-template-columns: 1fr; }
}

@media (max-width: 480px) {
  .vca-billing-bar { flex-direction: column; align-items: stretch; }
  .vca-billing-actions { justify-content: stretch; }
  .vca-billing-actions .vca-billing-btn { flex: 1; text-align: center; }
}

.vca-header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 12px;
  padding: 14px 16px;
  border-bottom: 1px solid var(--vca-border);
  background: color-mix(in oklch, var(--vca-primary) 6%, var(--vca-card));
  flex-shrink: 0;
}

/* Drag affordance — only in floating mode. */
.vca-backdrop[data-floating="true"] .vca-header {
  cursor: grab;
  user-select: none;
  touch-action: none;
}
.vca-backdrop[data-floating="true"] .vca-header.vca-dragging { cursor: grabbing; }

/* Buttons inside the header keep pointer cursor + don't initiate drag. */
.vca-backdrop[data-floating="true"] .vca-header .vca-icon-btn { cursor: pointer; }

/* Lock text selection while dragging anywhere. */
body.vca-no-select, body.vca-no-select * { user-select: none !important; }

.vca-title-row {
  display: flex;
  align-items: center;
  gap: 8px;
  min-width: 0;
}

.vca-title {
  margin: 0;
  font: 600 16px/1.3 'Sora', system-ui, sans-serif;
  color: var(--vca-foreground);
}

.vca-tier {
  flex-shrink: 0;
  font: 700 10px/1 'Sora', system-ui, sans-serif;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  padding: 3px 7px;
  border-radius: 999px;
  border: 1px solid transparent;
}

.vca-tier[data-tier="pro"] {
  background: var(--vca-primary);
  color: var(--vca-primary-foreground);
}

.vca-tier[data-tier="free"] {
  background: var(--vca-secondary);
  color: var(--vca-muted-foreground);
  border-color: var(--vca-border);
}

.vca-tier[data-tier="guest"] {
  background: transparent;
  color: var(--vca-muted-foreground);
  border-color: var(--vca-border);
}

.vca-subtitle {
  margin: 4px 0 0;
  font-size: 12px;
  color: var(--vca-muted-foreground);
}

.vca-header-actions {
  display: flex;
  gap: 6px;
  flex-shrink: 0;
}

.vca-policy {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-left: auto;
}

.vca-policy-item {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 11px;
  color: var(--vca-muted-foreground);
}

.vca-mode {
  border: 1px solid var(--vca-border);
  border-radius: 6px;
  background: var(--vca-card);
  color: var(--vca-card-foreground);
  font-size: 11px;
  padding: 2px 6px;
}

.vca-fresh-toggle {
  accent-color: var(--vca-primary);
}

.vca-icon-btn {
  background: transparent;
  border: 1px solid var(--vca-border);
  color: var(--vca-card-foreground);
  border-radius: var(--vca-radius);
  padding: 4px 10px;
  font-size: 12px;
  cursor: pointer;
  transition: background 0.15s, border-color 0.15s;
}

.vca-icon-btn:hover {
  background: var(--vca-primary-soft);
  border-color: var(--vca-primary-border);
}

.vca-messages {
  flex: 1;
  overflow-y: auto;
  padding: 12px 16px;
  display: flex;
  flex-direction: column;
  gap: 10px;
  min-height: 200px;
  background: var(--vca-background);
}

.vca-msg {
  max-width: 92%;
  padding: 8px 12px;
  border-radius: calc(var(--vca-radius) + 2px);
  font-size: 13px;
  line-height: 1.5;
  word-break: break-word;
}

.vca-msg-body {
  white-space: pre-wrap;
}

.vca-msg.user {
  align-self: flex-end;
  background: var(--vca-primary-soft);
  border: 1px solid var(--vca-primary-border);
  color: var(--vca-foreground);
}

.vca-msg.assistant {
  align-self: flex-start;
  background: var(--vca-card);
  border: 1px solid var(--vca-border);
  color: var(--vca-card-foreground);
}

.vca-msg.assistant .vca-msg-body {
  white-space: normal;
}

.vca-msg.system {
  align-self: center;
  font-size: 12px;
  padding: 6px 12px;
  max-width: 80%;
  text-align: center;
}

.vca-msg.system.is-info {
  color: var(--vca-muted-foreground);
  background: color-mix(in oklch, var(--vca-primary) 10%, transparent);
  border: 1px solid color-mix(in oklch, var(--vca-primary) 22%, transparent);
}

.vca-msg.system.is-error {
  color: var(--vca-destructive);
  background: var(--vca-destructive-soft);
  border: 1px solid var(--vca-destructive-border);
}

.vca-msg.streaming .vca-msg-body::after {
  content: ' ▋';
  color: var(--vca-primary);
  animation: vca-blink 0.8s step-end infinite;
}

/* ── Markdown ─────────────────────────────────────────────── */
.vca-md > * + * { margin-top: 8px; }
.vca-md p { margin: 0; }
.vca-md h3, .vca-md h4, .vca-md h5 {
  margin: 12px 0 4px;
  font: 600 14px/1.3 'Sora', system-ui, sans-serif;
  color: var(--vca-foreground);
}
.vca-md h4 { font-size: 13px; }
.vca-md h5 { font-size: 12px; text-transform: uppercase; letter-spacing: 0.04em; color: var(--vca-muted-foreground); }
.vca-md ul, .vca-md ol { margin: 4px 0 4px 18px; padding: 0; }
.vca-md li { margin: 2px 0; }
.vca-md code {
  font: 12px/1.5 'Fira Code', ui-monospace, SFMono-Regular, Menlo, monospace;
  background: color-mix(in oklch, var(--vca-primary) 10%, transparent);
  border: 1px solid color-mix(in oklch, var(--vca-primary) 22%, transparent);
  padding: 1px 5px;
  border-radius: 4px;
}
.vca-md a {
  color: var(--vca-primary);
  text-decoration: underline;
  text-underline-offset: 2px;
}

/* ── Fenced code blocks ───────────────────────────────────── */
.vca-code-wrap {
  border: 1px solid var(--vca-border);
  border-radius: var(--vca-radius);
  background: color-mix(in oklch, var(--vca-background) 65%, var(--vca-card));
  overflow: hidden;
}
.vca-code-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 4px 8px 4px 10px;
  background: color-mix(in oklch, var(--vca-primary) 8%, var(--vca-card));
  border-bottom: 1px solid var(--vca-border);
}
.vca-code-lang {
  font: 600 10px/1 'Fira Code', ui-monospace, monospace;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--vca-muted-foreground);
}
.vca-code-copy {
  font: 11px/1 'DM Sans', system-ui, sans-serif;
  padding: 3px 8px;
  border-radius: 4px;
  border: 1px solid var(--vca-border);
  background: transparent;
  color: var(--vca-muted-foreground);
  cursor: pointer;
  transition: background 0.15s, color 0.15s, border-color 0.15s;
}
.vca-code-copy:hover {
  background: var(--vca-primary-soft);
  border-color: var(--vca-primary-border);
  color: var(--vca-foreground);
}
.vca-code {
  margin: 0;
  padding: 10px 12px;
  overflow-x: auto;
  font: 12px/1.55 'Fira Code', ui-monospace, SFMono-Regular, Menlo, monospace;
  color: var(--vca-foreground);
  background: transparent;
  white-space: pre;
  tab-size: 2;
}
.vca-code code {
  background: none;
  border: none;
  padding: 0;
  font: inherit;
  color: inherit;
}

@keyframes vca-blink {
  50% { opacity: 0; }
}

.vca-apply-row {
  margin-top: 12px;
  padding-top: 12px;
  border-top: 1px dashed var(--vca-primary-border);
}

.vca-apply-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  width: 100%;
  font: 600 13px/1.2 'Sora', system-ui, sans-serif;
  padding: 10px 16px;
  border-radius: calc(var(--vca-radius) + 2px);
  border: 1px solid color-mix(in oklch, var(--vca-primary) 55%, transparent);
  background: linear-gradient(
    180deg,
    color-mix(in oklch, var(--vca-primary) 92%, white),
    var(--vca-primary)
  );
  color: var(--vca-primary-foreground);
  cursor: pointer;
  box-shadow:
    0 2px 10px color-mix(in oklch, var(--vca-primary) 35%, transparent),
    inset 0 1px 0 color-mix(in oklch, white 25%, transparent);
  transition: filter 0.15s, transform 0.1s, box-shadow 0.15s;
}

.vca-apply-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 1.25rem;
  height: 1.25rem;
  border-radius: 999px;
  background: color-mix(in oklch, var(--vca-primary-foreground) 18%, transparent);
  font-size: 12px;
  line-height: 1;
  flex-shrink: 0;
}

.vca-apply-label {
  text-align: center;
}

.vca-apply-btn:hover:not(:disabled) {
  filter: brightness(1.08);
  box-shadow:
    0 4px 14px color-mix(in oklch, var(--vca-primary) 45%, transparent),
    inset 0 1px 0 color-mix(in oklch, white 30%, transparent);
}

.vca-apply-btn:active:not(:disabled) {
  transform: translateY(1px);
}

.vca-apply-btn.is-ready {
  animation: vca-apply-pulse 1.2s ease-in-out 2;
  box-shadow: 0 0 0 3px color-mix(in oklch, var(--vca-primary) 35%, transparent);
}

@keyframes vca-apply-pulse {
  0%, 100% {
    box-shadow: 0 0 0 3px color-mix(in oklch, var(--vca-primary) 35%, transparent);
  }
  50% {
    box-shadow: 0 0 0 6px color-mix(in oklch, var(--vca-primary) 18%, transparent);
  }
}

.vca-apply-btn.is-applied {
  background: var(--vca-success-soft);
  border-color: var(--vca-success-border);
  color: var(--vca-success);
  box-shadow: none;
}

.vca-apply-btn.is-applied .vca-apply-icon {
  background: color-mix(in oklch, var(--vca-success) 20%, transparent);
}

.vca-apply-btn:disabled:not(.is-applied) {
  opacity: 0.65;
  cursor: wait;
}

.vca-apply-btn:disabled.is-applied {
  opacity: 1;
  cursor: default;
}

.vca-quick {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  padding: 0 16px 8px;
  background: var(--vca-background);
}

.vca-quick-btn {
  font-size: 11px;
  padding: 4px 10px;
  border-radius: 999px;
  border: 1px solid var(--vca-border);
  background: var(--vca-card);
  color: var(--vca-muted-foreground);
  cursor: pointer;
  transition: border-color 0.15s, background 0.15s, color 0.15s;
}

.vca-quick-btn:hover {
  border-color: var(--vca-primary-border);
  background: var(--vca-primary-soft);
  color: var(--vca-foreground);
}

.vca-input-row {
  display: flex;
  gap: 8px;
  padding: 12px 16px;
  border-top: 1px solid var(--vca-border);
  background: var(--vca-card);
}

.vca-input {
  flex: 1;
  resize: none;
  min-height: 40px;
  max-height: 120px;
  padding: 8px 10px;
  border-radius: var(--vca-radius);
  border: 1px solid var(--vca-input);
  background: var(--vca-secondary);
  color: var(--vca-card-foreground);
  font: inherit;
  transition: border-color 0.15s, box-shadow 0.15s;
}

.vca-input::placeholder {
  color: var(--vca-muted-foreground);
}

.vca-input:focus {
  outline: none;
  border-color: var(--vca-ring);
  box-shadow: 0 0 0 2px color-mix(in oklch, var(--vca-ring) 28%, transparent);
}

.vca-send {
  align-self: flex-end;
  padding: 8px 14px;
  border-radius: var(--vca-radius);
  border: none;
  background: var(--vca-primary);
  color: var(--vca-primary-foreground);
  font-weight: 600;
  cursor: pointer;
  transition: background 0.15s, filter 0.15s, transform 0.1s;
  min-width: 64px;
}

.vca-send:hover:not(:disabled) {
  filter: brightness(1.06);
}

.vca-send:active:not(:disabled) {
  transform: scale(0.98);
}

.vca-send[data-mode="stop"] {
  background: var(--vca-destructive);
  color: var(--vca-primary-foreground);
}

.vca-send:disabled {
  opacity: 0.45;
  cursor: not-allowed;
}

.vca-footer {
  padding: 4px 16px 10px;
  font-size: 11px;
  color: var(--vca-muted-foreground);
  background: var(--vca-card);
  text-align: right;
}

.vca-header-text { min-width: 0; }
.vca-header-text .vca-title,
.vca-header-text .vca-subtitle {
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

@media (max-width: 480px) {
  .vca-modal { width: 100%; max-height: 100vh; border-radius: 0; }
  .vca-backdrop { padding: 0; }
  .vca-msg { max-width: 96%; }

  /* Floating panel on mobile: full width, pinned to bottom, rounded top only. */
  .vca-backdrop[data-floating="true"] .vca-modal {
    left: 0 !important;
    right: 0 !important;
    bottom: 0;
    top: auto !important;
    width: 100%;
    max-height: 75vh;
    border-radius: calc(var(--vca-radius) + 6px) calc(var(--vca-radius) + 6px) 0 0;
  }
  .vca-backdrop[data-floating="true"] .vca-modal[data-collapsed="true"] {
    width: 100%;
    max-height: 52px;
  }
  .vca-policy {
    width: 100%;
    justify-content: flex-start;
    margin-left: 0;
    margin-top: 6px;
  }
  .vca-header {
    flex-wrap: wrap;
  }
}